18913751

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 20901888

約数和(自身を除く): 1988137

約数列:

[1, 23, 31, 41, 647, 713, 943, 1271, 14881, 20057, 26527, 29233, 461311, 610121, 822337, 18913751]

約数ペア:

[(1, 18913751), (23, 822337), (31, 610121), (41, 461311), (647, 29233), (713, 26527), (943, 20057), (1271, 14881)]